scholarly journals Attenuation Relationship of Earthquake Motion at Dam Foundation in Consideration of Tohoku Earthquake

2016 ◽  
Vol 16 (4) ◽  
pp. 4_80-4_92
Author(s):  
Takashi SASAKI ◽  
Takeshi ITO
Keyword(s):  
Tohoku Earthquake ◽  
Attenuation Relationship ◽  
Dam Foundation ◽  
Earthquake Motion ◽  
Relationship Of

Empirical Attenuation Relationship Of Pga Based On 17 August 1999 Kocaeli And 12 November 1999 Duzce Earthquakes Data

2005 ◽  
Author(s):  
E. Ulutas ◽  
T. Serkan Irmak ◽  
I.Talih Güven ◽  
B. Tunç ◽  
T. Çetinol ◽  
...  
Keyword(s):  
Attenuation Relationship ◽  
Relationship Of

A Coupling Modeling Method with ANSYS/FLAC3D and its Application

2012 ◽  
Vol 170-173 ◽  
pp. 3402-3405 ◽  
Author(s):  
Hua Zhou ◽  
Xiao Tao Wu ◽  
Dong Ni Zhou ◽  
Tian Tian
Keyword(s):  
Structural Engineering ◽  
Large Scale ◽  
Modeling Method ◽  
Arch Dam ◽  
Three Dimension ◽  
Dam Foundation ◽  
Hydroelectric Project ◽  
Geometry Model ◽  
Coupling Procedure ◽  
Relationship Of

A coupling modeling method with ANSYS/FLAC3D is put forward aiming at the technical difficulties and deficiencies in pre-processing for complex geologic body and structural engineering with FLAC3D. The coupling procedure is that, firstly, the three-dimension geometry model is built with ANSYS and the model meshes are divided. And secondly, the element and node data of the completed model built in ANSYS are exported. Based on the corresponding relationship of element and node between ANSYS and FLAC3D, the exported data above is transformed by using the interface program in FORTRAN, then the information is imported into FLAC3D. Thus the three-dimension FLAC3D model for complex engineering is generated coupling with ANSYS. With coupling method, the complex three-dimension model of arch dam-foundation system in large-scale hydroelectric project is built, and the results verify the feasibility and effectiveness of the proposed method.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

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